i've never heard of this previous unsolved now solved murder until i checked the news today

For 31 years, an enduring mystery had lingered in Pawtucket.

Who killed 10-year-old Christine Cole?

Christine, according to the document, left her West Avenue home and headed to the store on a January day in 1988 to buy some things for her mom. The temperature dipped below freezing and she wasn’t dressed properly. She stopped by Red’s Seafood to buy clams, then went to a friend’s house to play with dolls. Her last stop was Saints Market, at 76 Slater St., to buy milk. Christine left the store in the dark, a clerk said.

Christine never made it home. Her lifeless body washed up on Conimicut Point Beach in Warwick 54 days later.

When Cormier reopened the case in August, she went to the state medical examiner’s office to review the autopsy. Cormier learned that another detective, long since retired, had submitted evidence to the Department of Health in 2008. The results came back in 2010, but the paperwork wasn’t in the original case files.

Male blood, Cormier soon learned, had been found on the inside crotch of Christine’s pants.

how does this compare with The Unsolved Murder of JonBenet Ramsey?

how would you go about solving this case from

Male blood, Cormier soon learned, had been found on the inside crotch of Christine’s pants.

?

this is what investigators discovered

Forensic testing had gotten what’s called a partial Y-STR profile of the suspect’s DNA, based on his Y chromosome. With technological advances just in the past decade, Cormier got more testing with new technology, and got a larger DNA profile.

That was checked against a state Department of Health database. The closest match to the partial Y-STR profile was a man who wasn’t even born when Christine disappeared but had committed a crime that required him to submit a DNA sample, police said.

The suspect they were looking for, police concluded, was related to that person. That man’s father was Joao Monteiro, police say.

When police looked into Joao Monteiro’s background, they found he’d moved at least 19 times in the last 30 years, with one address 78 Slater St., directly above Saints Market. Other addresses were right in Christine’s neighborhood.

Police began following Monteiro — who, they said, “lives his life in a very covert manner,” parking his car at a building next door to his Central Falls home, and parking it between two large delivery trucks at work, police said.

This week, investigators got a search warrant for Monteiro’s DNA. At 8 a.m. Wednesday, they brought him to the Pawtucket Police Department to swab his cheeks and get it. By 5:50 p.m., forensic scientist Tamara Wong of the Department of Health contacted Cormier: Monteiro’s DNA was consistent with the sample found in the blood on Christine’s pants.

He was brought into custody after leaving work late Wednesday.

At the news conference in Pawtucket on Thursday, Cormier said she hopes it’s not the last arrest from the deck of cards.

“I hope this is a message to the people responsible for these crimes: We are coming for you,” she said.That was checked against a state Department of Health database. The closest match to the partial Y-STR profile was a man who wasn’t even born when Christine disappeared but had committed a crime that required him to submit a DNA sample, police said.

The suspect they were looking for, police concluded, was related to that person. That man’s father was Joao Monteiro, police say.

When police looked into Joao Monteiro’s background, they found he’d moved at least 19 times in the last 30 years, with one address 78 Slater St., directly above Saints Market. Other addresses were right in Christine’s neighborhood.

Police began following Monteiro — who, they said, “lives his life in a very covert manner,” parking his car at a building next door to his Central Falls home, and parking it between two large delivery trucks at work, police said.

This week, investigators got a search warrant for Monteiro’s DNA. At 8 a.m. Wednesday, they brought him to the Pawtucket Police Department to swab his cheeks and get it. By 5:50 p.m., forensic scientist Tamara Wong of the Department of Health contacted Cormier: Monteiro’s DNA was consistent with the sample found in the blood on Christine’s pants.

He was brought into custody after leaving work late Wednesday.

At the news conference in Pawtucket on Thursday, Cormier said she hopes it’s not the last arrest from the deck of cards.

“I hope this is a message to the people responsible for these crimes: We are coming for you,” she said.

it's worth noting that the latest 2018 round of DNA testing done in JBR includes

Forensic testing had gotten what’s called a partial Y-STR profile of the suspect’s DNA, based on his Y chromosome. With technological advances just in the past decade, Cormier got more testing with new technology, and got a larger DNA profile.

also worth noting

Monteiro had never been on investigators’ radar before they reopened Christine’s cold case. He was a stranger to Christine, his name never publicly linked with her disappearance and death.

this is a common theme both in the forensic files and ID channel,

that the actual suspect from BTK Dennis Raider to Golden state killer Joseph De'angelo was never on anyone suspect radar.

the killers of famous unsolved murders JonBenet Ramsey and Lindsay Buziak killers could well be not on anyone suspect radar.

Saanitch police said they have no DNA or fingerprints for Lindsay Buziak, so in theory JonBenet Ramsey is solvable based on DNA.

as an intruder theorists, i propose using the same scientific techniques, methodology and scientific DNA suspect identification that successfully solved 10-year-old Christine Cole in 1988 could also solve Jonbenet

there are other cold cases with DNA

Siobhan McGuiness (1968-1974) they found semen and got a DNA profile from semen. eyewitness said they saw a car with a new York license plate in missoula montana where the body was found.